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CVE-2026-58660

Kanboard BoardAjaxController Missing Ownership Check via Drag-and-Drop

Published: Jul 15, 2026Updated: Jul 15, 2026 Sources: CVE List NVDCWE-639
8.1HIGH
NVD MITRE
EPSS Score
0.5%
Top 58.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
OpenVAS

Description

Kanboard through 1.2.52, fixed in commit 564cc30, BoardAjaxController save() method (used by the kanban board drag-and-drop endpoint) validates the caller's role on the attacker-supplied project_id but never verifies that the supplied task_id actually belongs to that project. Because task identifiers are sequential integers shared across the entire instance, any authenticated user who is a member of at least one project can enumerate and move (corrupt/hide) tasks belonging to any other project on the same instance, including private projects they have no membership or role on.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-639

Affected Products

kanboard
oss-projectaka kanban board
kanboardOn-prem
Enterprise Software / collaboration-groupware

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
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References

https://github.com/kanboard/kanboard/commit/564cc30e1e360959572e01e158734d9475c05903
github.com
https://github.com/kanboard/kanboard/issues/5852
github.com
https://github.com/kanboard/kanboard/pull/5853
github.com
and 1 more references View all →

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